LOCATION
LOCATION.--Lat 44°51'10", long 92°14'17", in SE 1/4 NE 1/4 sec.6, T.27 N., R.15 W., Pierce County,
Hydrologic Unit 07050005, on right bank 770 ft downstream from flood control dam, 1,500 ft upstream
from Mines Creek, at Spring Valley.
DRAINAGE AREA.--64.1 square miles
PERIOD OF RECORD.--March 1944 to current year.
REVISED RECORDS.--WDR WI-67-1: 1966. WDR WI-81-1: Drainage area. WDR WI-92-1: 1975-
79(M), 1977, 1978.
GAGE.--Water-stage recorder, crest-stage gage, and v-notch sharp-crested weir. Datum of gage is 900.00
ft above sea level (levels by U.S. Army Corps of Engineers). Prior to July 31, 1957, nonrecording gage at
site 850 ft downstream at datum of 912.45 ft above sea level. Aug. 1, 1957, to June 6, 1966, nonrecording
gage at downstream site at datum of 910.45 ft above sea level. June 7, 1966, to Oct. 31, 1968,
nonrecording gage at downstream site at datum of 909.45 ft above sea level.
REMARKS.--Low flow slightly regulated and high flow completely regulated by flood-control dam 770 ft
upstream. Data-collection platform at station.
EXTREMES OUTSIDE OF PERIOD OF RECORD.--Maximum stage since at least 1894, that of Sept.
18, 1942, 19.98 ft, with datum at 909.45 ft above sea level, from floodmarks, discharge, 33,000 cubic feet
per second estimated by U.S. Army Corps of Engineers on basis of slope-area measurement by Geological
Survey of peak discharge of 39,000 cubic feet per second at Elmwood, drainage area, 91.9 square miles.
Station operated in cooperation with Corps of Engineers, St. Paul, Minnesota.
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